Re: [lkcd-devel] Re: What's left over.

Werner Almesberger
2002-11-10T03:24:08Z

Eric W. Biederman wrote:
> What I was thinking is that the process would for and exec
> something like "/etc/rc 6" or maybe "/etc/rc 7" to be clean.
> And that script would do all of the user space shutdown.

Yes, but init also does a kill(-1,...) to get rid of all processes,
before the last steps of system shutdown. So you have to somehow
make your "page holding" process survive beyond this point.

> My feel is that kexec-on-panic is a rather different problem.

You make it a different problem by assuming that you'd have a
kernel that is specifically built for running at a "safe"
location. If you assume that you're just using your normal
kernel, the two problems converge again. There are still a
few things that are different, like the checksumming, but
they can safely be added at a later time.

- Werner

--
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/ Werner Almesberger, Buenos Aires, Argentina wa@almesberger.net /
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